JP2009181303A - Electronic card - Google Patents

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Publication number
JP2009181303A
JP2009181303A JP2008019279A JP2008019279A JP2009181303A JP 2009181303 A JP2009181303 A JP 2009181303A JP 2008019279 A JP2008019279 A JP 2008019279A JP 2008019279 A JP2008019279 A JP 2008019279A JP 2009181303 A JP2009181303 A JP 2009181303A
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JP
Japan
Prior art keywords
formed
surface
shell
electronic card
connector
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP2008019279A
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Japanese (ja)
Inventor
Akihiro Higashichi
Masateru Tsujimoto
昭博 東地
将輝 辻本
Original Assignee
Jst Mfg Co Ltd
日本圧着端子製造株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Jst Mfg Co Ltd, 日本圧着端子製造株式会社 filed Critical Jst Mfg Co Ltd
Priority to JP2008019279A priority Critical patent/JP2009181303A/en
Publication of JP2009181303A publication Critical patent/JP2009181303A/en
Application status is Pending legal-status Critical

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    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06KRECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/067Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
    • G06K19/07Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
    • G06K19/077Constructional details, e.g. mounting of circuits in the carrier
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S439/00Electrical connectors
    • Y10S439/946Memory card cartridge

Abstract

An electronic card capable of preventing damage to an electronic circuit incorporated in the electronic card by effectively discharging static electricity to the electronic card.
A connector having a plurality of contacts and a housing for holding the contacts; a substrate connected to the contacts and mounted with an electronic circuit; and a surface on one side of the substrate formed of a conductive material. A housing case having a first shell disposed on the side facing the substrate and a second shell formed of a conductive material and disposed on the side facing the other surface of the substrate. Is held in an exposed state inside an opening provided in a first surface formed on the front surface of the connector in the insertion / removal direction of the connector, and the housing case is formed of a conductive material. In addition, there is provided an electrostatic shield portion that is arranged in a state where at least a part is exposed on the surface of the first surface.
[Selection] Figure 1

Description

  The present invention relates to a small electronic card such as a CF card or an Express card. In particular, the present invention relates to an electronic card with countermeasures against static electricity.

  In recent years, small electronic cards such as a CF card and an Express card have an IC (semiconductor integrated circuit) mounted on a substrate for recording and calculating information (data). Such electronic cards are widely used as storage media or devices for adding various functions in various electronic devices such as personal computers and electronic cameras.

  By the way, in the above-mentioned electronic card, a substrate on which an electronic circuit is mounted is usually disposed inside, and a contact connected to the electronic circuit is formed so as to be connectable to an external device. Thus, for example, if the user who uses the electronic card is charged with static electricity, when the user touches the electronic card or approaches the electronic card, the static electricity is discharged from the user toward the contact. It may happen. Such electrostatic discharge may damage the electronic circuit connected to the contact or affect the electronic circuit.

On the other hand, by forming the housing case that houses the board on which the electronic circuit is mounted with a conductive material such as a metal plate, users charged with static electricity, etc. approach the electronic card and use static electricity, etc. An electronic card configured to positively discharge static electricity to a housing case when discharging from a person to an electronic card is disclosed (for example, see Patent Document 1). The electronic card disclosed in Patent Document 1 does not adversely affect the electronic circuit of the electronic card by positively discharging static electricity or the like to the housing case that is not electrically connected to the electronic circuit mounted on the substrate. It is a thing.
JP 2000-48159

  However, in the case where the electronic card described in Patent Document 1 is held in the housing in a state where the contact is exposed inside the opening of the housing, for example, a charged person charged with static electricity or the like is attached to the housing of the electronic card. When touching, if the distance between the charged person and the contact is closer than the distance between the charged person and the electronic card housing case, the static electricity will not be discharged to the electronic card housing case, but discharged to the contact. There was a case. Thereby, there existed a problem that there existed a possibility of damaging the electronic circuit etc. which were connected with the contact.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide an electronic card capable of preventing damage to an electronic circuit incorporated in the electronic card by effectively discharging static electricity to the electronic card. And

  The present inventors provide an electrostatic shield part formed of a conductive member on the surface of the housing in the vicinity of the contact so that the distance between the charged person and the electrostatic shield part becomes shorter than the distance between the charged person and the contact. With this configuration, it has been found that when a charged person approaches the vicinity of the contact, static electricity is discharged to the electrostatic shield part, and the present invention has been completed. Specifically, it aims at providing the following electronic cards.

  (1) a connector having a plurality of contacts and a housing for holding the contacts; a substrate connected to the contacts and mounted with an electronic circuit; and a surface on one side of the substrate formed of a conductive material An electronic card comprising: a housing case having a first shell disposed on the opposite side and a second shell formed of a conductive material and disposed on the side facing the other surface of the substrate. The contact is held in an exposed state inside an opening provided in a first surface formed on the front surface of the housing in the insertion / removal direction of the connector. An electronic card provided with an electrostatic shield portion that is formed of a conductive material and is disposed in a state where at least a portion is exposed on the surface of the first surface.

  (2) The electronic card according to (1), wherein the electrostatic shield part is formed by bending a part of one or both of the first shell and the second shell.

  (3) The electronic card according to (1) or (2), wherein the first shell, the second shell, and the electrostatic shield portion are integrally formed.

(4) a connector having a plurality of contacts and a housing holding the contacts;
A substrate connected to the contact and on which an electronic circuit is mounted; a first shell formed of a conductive material and disposed on a side opposite to one surface of the substrate; and a substrate formed of a conductive material A storage case having a second shell disposed on the side facing the other side, wherein the contact is a first orthogonal to the insertion / removal direction of the connector in the housing. A plate which is held in an exposed state inside an opening provided in the surface, and which is in contact with the first shell and / or the second shell and formed of a conductive material on the first surface An electronic card with a part.

  (5) The electronic card according to any one of (1) to (4), wherein the electronic circuit is a memory card configured with a memory IC.

  ADVANTAGE OF THE INVENTION According to this invention, the electronic card which can prevent the failure | damage of the electronic circuit built in an electronic card by discharging the static electricity with respect to an electronic card effectively can be provided.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In addition, embodiment of this invention is not limited to the following embodiment at all, and the technical scope of this invention is not limited to this. In the present embodiment, a CFast card is used as an electronic card. However, the present invention is not limited to this. For example, you may use for PC cards, such as an express card.

  FIG. 1 is a perspective view of the CFast card 1 according to the first embodiment of the present invention as viewed from above. FIG. 2 is a perspective view of the CFast card 1 in the embodiment as viewed from below. FIG. 3 is an exploded perspective view of the CFast card 1 in the embodiment. 4 is a cross-sectional view taken along the line XX in FIG.

[First Embodiment]
The CFast card 1 in the first embodiment is a card-type storage medium formed in a rectangular shape as shown in FIGS. 1 to 3, and is inserted into a slot provided in an external device such as a personal computer, for example. It is used by fitting with a connector provided inside the external device. Hereinafter, the CFast card 1 will be described in detail.

  The CFast card 1 mainly includes a housing case 2 for housing the printed circuit board 8, a printed circuit board 8 on which a memory IC (not shown) constituting the memory is mounted, and a connector 7 connected to the printed circuit board 8. It is configured.

  The housing case 2 has a top shell 3 that is a first shell disposed on the side facing the surface 81 on one side of the printed circuit board 8 and a first surface disposed on the side facing the surface 82 on the other side of the printed circuit board 8. A connector that sandwiches the printed circuit board 8 in the mounting direction (A) of the bottom shell 4 that is two shells, the electrostatic shield portion 5 formed by bending the top shell 3 and the bottom shell 4, and the connector 7. The frame 6 is arranged mainly on the side opposite to the side on which 7 is arranged.

  The top shell 3 is formed in a substantially rectangular shape by a metal material that is a conductive material. Further, the top shell 3 has holes formed so as to be fitted to the bottom shell 4 on both sides orthogonal to the mounting direction (A) of the connector 7 and on the rear end side in the mounting direction (A) of the connector 7. The fitting hole part 31 which has is provided. The fitting hole portion 31 is formed by forming a part of the top shell 3 into a predetermined shape and then bending the bottom shell 4 side.

  The bottom shell 4 is formed in a rectangular shape from a metal material that is a conductive material. Further, the bottom shell 4 has holes of fitting holes 31 formed in the top shell 3 on both sides orthogonal to the mounting direction (A) of the connector 7 and on the rear end side in the mounting direction (A) of the connector 7. The fitting claw part 41 which has a claw part which can be fitted to a part is provided. The fitting claw portion 41 is formed by forming a part of the bottom shell 4 into a predetermined shape and then bending it to the top shell 3 side.

  The housing case 2 can fit the top shell 3 and the bottom shell 4 by fitting the claw portion of the fitting claw portion 41 into the hole portion of the fitting hole portion 31, and can accommodate the printed circuit board 8 inside. It is formed in a flat plate shape.

  The bottom shell 4 is provided with a grounding portion 42. The grounding portion 42 is grounded with a ground grounding portion provided in a connector of the external device when attached to the external device to be used, so that charges stored in the top shell 3 and the bottom shell 4 can be released. It is configured. Note that the ground contact portion 42 in the present embodiment is formed by bending a part of the bottom shell 4 into a predetermined shape and then bending the top shell 3 side, and is formed so as to be elastically deformable.

  The electrostatic shield part 5 is provided on the front edge part side in the mounting direction (A) of the connector 7 in the top shell 3 and the bottom shell 4. Specifically, as shown in FIGS. 3 and 4, the top shell 3 has a first shield portion 51 formed in a predetermined shape and then bent to the bottom shell 4 side. It is provided on the part side. Similarly, the bottom shell 4 is provided with a second shield portion 52 formed on the front edge portion side after being formed in a predetermined shape and then bent on the top shell 3 side. In the present embodiment, the top shell 3 is provided with three first shield portions 51, and the bottom shell 4 is provided with five second shield portions 52.

  The frame 6 has a pair of arms 61 and 62 arranged so as to sandwich both sides of the printed circuit board 8 in a direction orthogonal to the mounting direction (A) of the connector 7 and is formed in a substantially U-shape. Yes. And the 2nd engaging parts 63 and 64 which can engage with the 1st engaging parts 92a and 92b provided in the below-mentioned connector 7 are formed in each tip of a pair of arm parts 61 and 62, respectively. . Each of the pair of arm portions 61 and 62 is provided with a first recess 65 that is recessed in the thickness direction of the arm portion.

  The frame 6 is engaged with first engagement portions 92a and 92b described later provided on the connector 7 and second engagement portions 63 and 64 provided at the distal ends of the pair of arm portions 61 and 62, respectively. A frame surrounding the side edge of the printed circuit board 8 is formed. Note that the frame 6 is made of a synthetic resin that is an insulating material, whereby the printed circuit board 8 is surrounded by the insulating material.

  Further, the frame 6 is provided with a plurality of slits 67 for holding the fitting hole portion 31 of the top shell 3 and the fitting claw portion 41 of the bottom shell 4. The fitting hole portion 31 and the fitting claw portion 41 are respectively fitted in the slit 67 provided in the frame 6, and the fitted fitting hole portion 31 and the fitting claw portion 41 are fitted. The fitted state is maintained inside the slit 67.

  A memory IC (semiconductor integrated circuit) constituting a memory is mounted on the printed circuit board 8. The CFast card 1 functions as a storage medium by mounting a memory IC. The printed circuit board 8 is provided with a ground contact portion (not shown) for releasing charges such as static electricity in addition to the memory IC constituting the memory.

  The connector 7 is mainly composed of a housing 9 formed of a synthetic resin, which is an insulating material, and a plurality of contacts 10 having one end connected to a memory IC mounted on the printed circuit board 8. The housing 9 includes a housing main body 91 formed in a substantially rectangular parallelepiped shape for holding each of the plurality of contacts 10, and a first protrusion protruding in a direction opposite to the mounting direction (A) of the connector 7 at both ends in the longitudinal direction of the housing main body 91. 1 engaging portions 92a and 92b. The first engaging portions 92a and 92b are formed to be engageable with the second engaging portions 63 and 64.

The housing body 91 is provided with an opening 94 that is divided into a first opening 94a and a second opening 94b on a first surface 93 that is a front surface in the mounting direction (A) of the connector 7. A holding portion 95 that holds the contact 10 so as to be exposed is provided inside the opening 94. Specifically, a first holding portion 95a is provided inside the first opening 94a, and a second holding portion 95b is provided inside the second opening 94b. The first holding unit 95a and the second holding unit 95b can hold the contacts connected to the electronic circuit having a predetermined function separately for each function. In the present embodiment, the contact 10 connected to the memory IC is held in the first holding portion 95a and the second holding portion 95b with the tip portion 10a exposed (see FIG. 4).
The housing main body 91 holds the printed circuit board 8 on the surface facing the first surface 93 and also holds the contacts 10 connected to the printed circuit board 8.

  Further, the first surface 93 is formed with a first recess 96 in which the first shield part 51 is disposed, and similarly, a second recess 97 in which the second shield part 52 is disposed. A first concave portion 96 and a second concave portion 97 are provided on the first surface 93, and the first shield portion 51 and the second shield portion 52 are arranged on the first surface 93, respectively, so that the first shield portion 51 and the second shield portion 52 are brought into contact with each other. 10 can be disposed in the vicinity of the tip portion 10a (see FIG. 4).

  As described above, according to the present embodiment, the CFast card 1 includes the first shield part 51 formed by bending the extension part extending from the top shell 3 and the extension extending from the bottom shell 4. By disposing the second shield part 52 formed by bending the protruding part so as to be exposed in the vicinity of the opening 94 where the holding part 95 for holding the contact 10 is provided, discharge such as static electricity occurs. Even in the case, it is possible to discharge the discharge to the first shield part 51 or the second shield part 52 without flying to the contact.

  That is, the CFast card 1A is arranged so that the first shield part 51 and / or the second shield part 52 are exposed on the surface of the first surface 93 that is the front end surface in the mounting direction (A) of the connector 7. Thus, even when a user who is charged with static electricity touches the vicinity of the connector of the CFast card, the distance between the charged person and the first shield part 51 and the second shield part 52 is more than the distance between the charged person and the contact. Therefore, the discharge discharged from the charged person can be directed to the first shield part 51 or the second shield part 52 which is closer than the contact. Thereby, it becomes possible to prevent discharge of static electricity or the like to the contact, and it is possible to protect the electronic circuit connected to the contact 10 from static electricity or the like.

[Other Embodiments]
Next, CFast cards 1A and 1B according to other embodiments of the present invention will be described. In the following embodiments, parts that are not particularly described are the same as those in the first embodiment, and the same reference numerals are given to the numbers given in the drawings if they are the same as those in the first embodiment.

1. Second Embodiment FIG. 5 is a perspective view of a CFast card 1A according to a second embodiment of the present invention as viewed from the front side. FIG. 6 is an exploded perspective view of the CFast card 1A in the embodiment.

  As shown in FIGS. 5 and 6, the CFast card 1A according to the second embodiment of the present invention is such that the top shell 3A, the bottom shell 4A, and the electrostatic shield part 5A in the housing case 2A are integrally formed. Different from the first embodiment.

  Specifically, the top shell 3A, the electrostatic shield part 5A, and the bottom shell 4A are integrally formed continuously in the above order, and the top shell 3A, the electrostatic shield part 5A, and the bottom shell 4A are the top part. The housing case is configured by bending each of the connecting portion between the shell 3A and the electrostatic shield portion 5A and the connecting portion between the electrostatic shield portion 5A and the bottom shell 4A.

  Thereby, the CFast card 1A can be covered with the entire first surface by the electrostatic shield part 5A. The electrostatic shield 5A is provided with an opening 53, which allows communication with the opening 94 provided in the housing main body 91, thereby maintaining the exposure of the holding part 95, that is, the exposure of the contact 10.

  As described above, according to the second embodiment, the CFast card 1A has the electrostatic shield portion 5A formed of the conductive material on the entire surface except the opening 94 on the first surface 93 of the housing body 91. In addition, the shielding effect against static electricity and the like can be further improved.

  Further, according to the second embodiment, the CFast card 1A has the top shell 3A, the bottom shell 4A, and the electrostatic shield part 5A formed integrally, so that the strength of the CFast card 1A can be improved.

  Also, according to the second embodiment, the CFast card 1A can be formed with a reduced number of parts because the top shell 3A, the bottom shell 4A, and the electrostatic shield 5A are integrally formed. As a result, the number of assembly steps can be reduced.

2. Third Embodiment FIG. 7 is a perspective view of a CFast card 1B according to a third embodiment of the present invention as viewed from the front side. FIG. 8 is an exploded perspective view of the CFast card 1B in the embodiment.

  As shown in FIGS. 7 and 8, the CFast card 1 </ b> B according to the third embodiment of the present invention differs from the first embodiment in that a ground plate 5 </ b> B as a plate portion is provided on the first surface 93 of the connector 7.

  Specifically, the CFast card 1B is formed separately from the top shell 3B and the bottom shell 4B by a conductive material instead of providing the electrostatic shield portion 5 extending from the top shell 3B and the bottom shell 4B. The provision of the ground plate 5B is different from the first embodiment.

  The electric charge charged to the ground plate 5B can be released to the top shell 3B and the bottom shell 4B by providing the ground plate 5B in contact with the top shell 3B and the bottom shell 4B. . As a result, the ground plate 5B can release charges to the external device when the ground plate 5B is attached to the external device.

  In addition, an opening 54 is provided in the ground plate 5B, so that the ground plate 5B can communicate with the opening 94 provided in the housing body 91, and the exposure of the contact 10 is maintained.

As described above, according to the third embodiment, the CFast card 1B can be easily replaced even when it is damaged because the ground plate 5B is provided separately from the top shell 3B and the bottom shell 4B. In addition, since the CFast card 1B is provided with the ground plate 5B on the front surface of the connector 7, it is possible to increase the strength against bending and distortion of the connector 7.
Further, according to the third embodiment, the CFast card 1B has a ground plate 5B formed of a conductive material on the entire surface except the opening 94 on the first surface 93 of the housing main body 91. It becomes possible to further improve the shielding effect.

  In the above-described embodiment, the electronic card is described using a CFast card on which a memory IC is mounted. However, the present invention is not limited to this. For example, an IC for performing computation or an IC for performing communication may be mounted. For example, it may be a CPU mounted card on which a CPU, a coprocessor, and the like are mounted.

  In the present embodiment, the CFast card is used as the electronic card. However, the present invention is not limited to this. For example, an express card or a SIM card may be used, and any IC card can be used as long as the electronic card has the above configuration.

It is the perspective view seen from the upper side of the CFast card | curd in 1st Embodiment of this invention. It is the perspective view seen from the downward side of the CFast card | curd in the said embodiment. It is a disassembled perspective view of the CFast card | curd in the said embodiment. It is AA sectional drawing of FIG. It is the perspective view seen from the front side of the CFast card | curd in 2nd Embodiment of this invention. It is a disassembled perspective view of the CFast card | curd in the said embodiment. It is the perspective view seen from the front side of the CFast card | curd in 3rd Embodiment of this invention. It is a disassembled perspective view of the CFast card | curd in the said embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 CFast card 2 Storage case 3 Top shell 4 Bottom shell 5 Electrostatic shield part 6 Frame 7 Connector 8 Printed circuit board 9 Housing 10 Contact 93 1st surface 94 Opening 95 Holding part

Claims (5)

  1. A connector having a plurality of contacts and a housing holding the contacts;
    A substrate connected to the contact and on which an electronic circuit is mounted;
    A first shell formed of a conductive material and disposed on the side facing the one side surface of the substrate; and a second shell formed of a conductive material and disposed on the side facing the other side surface of the substrate And a storage case having
    An electronic card comprising:
    The contact is held in an exposed state inside an opening provided in a first surface formed on a front surface of the housing in the insertion / removal direction of the connector,
    The electronic card is provided with an electrostatic shield portion which is formed of a conductive material and is disposed in a state where at least a part is exposed on the surface of the first surface.
  2.   The electronic card according to claim 1, wherein the electrostatic shield part is formed by bending a part of one or both of the first shell and the second shell.
  3.   The electronic card according to claim 1, wherein the first shell, the second shell, and the electrostatic shield portion are integrally formed.
  4. A connector having a plurality of contacts and a housing holding the contacts;
    A substrate connected to the contact and on which an electronic circuit is mounted;
    A first shell formed of a conductive material and disposed on the side facing the one side surface of the substrate; and a second shell formed of a conductive material and disposed on the side facing the other side surface of the substrate And a storage case having
    An electronic card comprising:
    The contact is held in an exposed state inside an opening provided in a first surface formed on a front surface of the housing in the insertion / removal direction of the connector,
    The electronic card is formed of a conductive material on the first surface and is provided with a plate portion that comes into contact with the first shell and / or the second shell.
  5. The electronic card according to claim 1, wherein the electronic circuit is a memory card composed of a memory IC.
JP2008019279A 2008-01-30 2008-01-30 Electronic card Pending JP2009181303A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2008019279A JP2009181303A (en) 2008-01-30 2008-01-30 Electronic card

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2008019279A JP2009181303A (en) 2008-01-30 2008-01-30 Electronic card
US12/318,933 US7806701B2 (en) 2008-01-30 2009-01-13 Electronic card having a countermeasure against static electricity
CN2009100059466A CN101499139B (en) 2008-01-30 2009-01-22 Electronic card

Publications (1)

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JP2009181303A true JP2009181303A (en) 2009-08-13

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US (1) US7806701B2 (en)
JP (1) JP2009181303A (en)
CN (1) CN101499139B (en)

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CN101499139A (en) 2009-08-05
US7806701B2 (en) 2010-10-05
CN101499139B (en) 2012-12-19
US20090191757A1 (en) 2009-07-30

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